G37 Coupe

Thinking of outside the box

Old Jul 14, 2016 | 10:44 AM
  #16  
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Originally Posted by Pgwn-g37
TT_ My XXXHP goal would be what ever the car/build could handle safely, if that is 500WHP then I want everything else built to support +600whp so I can drive like I stole it and not worry about breaking it AS much.

Here is a side note, whice if anyone can relate or explain then please do, I understand that each dyno with each tuner will give a different output. I took mine in for a base run and with R2C CAI and a lightweight flywheel my output read 260whp @6100 and 234wtq @4300, why did the run stop at 6100 RPM and not run to max eng speed? They used a Dynojet Research with CF: SAE smoothing and thats all I can read off the pic on my phone. Is it a self auto thing that turns it off when the power just reached its max(which ours is roughly 278-284 at the wheels right) or did the guy just stop it there, can the machine I used only go to 6500 which was the final number posted on the graph but my line stopped at 6100? Would those two upgrades really lessen my output without a re-tune? Having less weight at the fly should have increased my WHP not my crank HP. Yes it would be minimal but I thought.....is it rotational mass here that I'm thinking? Two cars, same CRANK HP one car has less weight to spin and that could be at the fly/driveshaft/brakes/wheels then each car will give different WHP?
Next time I hit port I will try to figure out how to upload the pic.

Waste_ If I can plan it out, then I would deliver the car for an upgrade while I'm deployed so I won't need a car to drive. But to trust a company for XX months If that won't work I am close to my work and I would just ride a bike.

Neglect_ I have not heard of the 3.916 but the 4.08 I have. And the JWT cams I heard about and was thinking of the upgrade as well, but it seems like a lot of people are wondering if the $$ vs. ++ is worth it.
Not sure why your tuner stopped at 6100. I don't think I have seen a member with a dyno develop the max power that low. My guess is they didn't run it up to 7500 for some reason (maybe pinging?) you would have to ask. That also correlates your low numbers. Most dynojet users are around 275 WHP stock. You are going to be a little above that with the CAI. If you want to go the power route I will give you what I would do if I could do it all over again. I would go with a single turbo Boosted Performance turbo kit. It is much easier to install vs a twin turbo (no need to drop the engine) and in a stock engine will make just as much power. From reading these are the upgrades you will want to do by WHP:


400+: HD concentric slave cylinder or CSC delete, new clutch/flywheel; larger injectors; oil cooler
500+: Stage 1 CJ Motorsports fuel system upgrade (includes return conversion)


You are fine with the stock manual transmission, it holds gobs of power.


If you are serious, talk to Sasha at Boosted Performance and he will get you a ballpark of what it would cost for the parts as well as nominal hours to install. You will also want to get rid of your catalytic converters if you are able to. Any FI will chew through your cats or hi flow cats after a while.
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Old Jul 14, 2016 | 11:34 AM
  #17  
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Originally Posted by Pgwn-g37
TT_ My XXXHP goal would be what ever the car/build could handle safely, if that is 500WHP then I want everything else built to support +600whp so I can drive like I stole it and not worry about breaking it AS much.

Neglect_ I have not heard of the 3.916 but the 4.08 I have. And the JWT cams I heard about and was thinking of the upgrade as well, but it seems like a lot of people are wondering if the $$ vs. ++ is worth it.
Every car is different and every tuner has different views on what a car can "handle safely". As a general rule of thumb you should not be looking at HP but TQ - keeping the TQ under 500 is usually considered the "safe" side, but the age/mileage on the motor will play a role in how long it will last at high TQ.

IMO, you should NOT change to shorter 3.916 or 4.08 gears if you plan on boosting. Having longer gears may make an NA car accelerate slower, but on a boosted vehicle it is more ideal to have longer gears to stay in boost/gear longer which outshadows the power loss allowing for more power as well as higher top MPH speed.

Originally Posted by Waste86
Not sure why your tuner stopped at 6100. ...

400+: HD concentric slave cylinder or CSC delete, new clutch/flywheel; larger injectors; oil cooler
500+: Stage 1 CJ Motorsports fuel system upgrade (includes return conversion)

You are fine with the stock manual transmission, it holds gobs of power.

If you are serious, talk to Sasha at Boosted Performance and he will get you a ballpark of what it would cost for the parts as well as nominal hours to install. You will also want to get rid of your catalytic converters if you are able to. Any FI will chew through your cats or hi flow cats after a while.
Agree with everything. Definitely the BP kit is one of the best options for a 6MT to max out a stock block.

The list goes beyond that but I would add GT-R spark plugs, differential bushings, motor/transmission mounts, and boost/control/afr gauges to it as well.

Last edited by ttv36; Jul 14, 2016 at 11:47 AM.
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Old Jul 14, 2016 | 12:05 PM
  #18  
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I'm just guessing that it would make 50WTQ since stage 1 cams made 30WTQ and thats N/A with other bolt ons...

Originally Posted by Kris9884
Is that figure assuming they are being mated to a turbo'd motor?
Exploring the route of non boost, and how much power we can get out of our VQ's NA. From what i've gathered a 300WHP Tuned G with 3.916 final drive is approximately 4.5 sec 0-60mph

Originally Posted by ttv36
Every car is different and every tuner has different views on what a car can "handle safely". As a general rule of thumb you should not be looking at HP but TQ - keeping the TQ under 500 is usually considered the "safe" side, but the age/mileage on the motor will play a role in how long it will last at high TQ.

IMO, you should NOT change to shorter 3.916 or 4.08 gears if you plan on boosting. Having longer gears may make an NA car accelerate slower, but on a boosted vehicle it is more ideal to have longer gears to stay in boost/gear longer which outshadows the power loss allowing for more power as well as higher top MPH speed.



Agree with everything. Definitely the BP kit is one of the best options for a 6MT to max out a stock block.

The list goes beyond that but I would add GT-R spark plugs, differential bushings, motor/transmission mounts, and boost/control/afr gauges to it as well.
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Old Jul 14, 2016 | 01:30 PM
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Originally Posted by reNeglect
Exploring the route of non boost, and how much power we can get out of our VQ's NA. From what i've gathered a 300WHP Tuned G with 3.916 final drive is approximately 4.5 sec 0-60mph

Depending on Dyno somewhere from 330-370 WHP. See the link here: N/A HP BRAG thread - Nissan 370Z Forum
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Old Jul 14, 2016 | 02:14 PM
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I've always been a huge fan of NA builds, I'd love to grab cams and tune them in with all of the bolt-ons. I'd def go E85 at that point to get every last bit of tuning.
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Old Jul 15, 2016 | 04:10 AM
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Ok so I need more research on the BP turbo set up. I was able to look at pics but haven't been able to do any reading on it yet. But my only concern right now based off of pics alone is the lower piping. It sits under the transmission, which there is not a lot of of room there to begin with. Granted I am not lowered but the roads I live at are not the best for that also speed bumps? I would look like a stance guy dodging those. If that won't be an issue my next question would be that the pics are leading me to believe it's a single exhaust now? Or at least a custom dual exhaust is needed from how the tubes are lining up.
My Zipcode is voided from DEQ so I was planning on doing something with the cats anyways till I get stationed somewhere else.
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Old Jul 15, 2016 | 07:30 AM
  #22  
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I got to read a G37 BP build off the370z.com under jwick build thread, got to page 15 or so. His pictures show different angles which makes me think I won't hit anything going over stuff, so that's good news. Does look like a custom exhaust for a dual, as I'm trying to remember how far the stock duals travel up from the rear. Anyways, still reading but I'm not liking the fact that the crash bar is removed....at least up to where I left off.
Very good read so far.
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Old Jul 15, 2016 | 10:37 AM
  #23  
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Originally Posted by Pgwn-g37
I got to read a G37 BP build off the370z.com under jwick build thread, got to page 15 or so. His pictures show different angles which makes me think I won't hit anything going over stuff, so that's good news. Does look like a custom exhaust for a dual, as I'm trying to remember how far the stock duals travel up from the rear. Anyways, still reading but I'm not liking the fact that the crash bar is removed....at least up to where I left off.
Very good read so far.
As an FYI that crashbar is for very low speed accidents, like 5mph or less, very pointless. The actual protection is gonna be behind the intercooler anyway.
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Old Jul 15, 2016 | 11:14 AM
  #24  
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Originally Posted by Pgwn-g37
I got to read a G37 BP build off the370z.com under jwick build thread, got to page 15 or so. His pictures show different angles which makes me think I won't hit anything going over stuff, so that's good news. Does look like a custom exhaust for a dual, as I'm trying to remember how far the stock duals travel up from the rear. Anyways, still reading but I'm not liking the fact that the crash bar is removed....at least up to where I left off.
Very good read so far.
The crash bar is also removed from the FI TT build. However, they have an aftermarket one that you can buy to replace it. I think AAM TT kit keeps the crash bar. As far space concerns, it is cramped going with a twin or a single turbo, no way around it. The benefit to single is not needing to drop the engine.
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Old Jul 15, 2016 | 11:33 AM
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Originally Posted by Kris9884
As an FYI that crashbar is for very low speed accidents, like 5mph or less, very pointless. The actual protection is gonna be behind the intercooler anyway.
that is nice to know, I thought that was were all the sensors were kept though?
Just finished reading the build and damn, really going to contemplate on going BP. But now which route to build, DIY(friend boosted his G35 and did all his work) to save money, see if there is a shop near me, or send it to Sasha?
Thanks for the information guys and especially Wasted for letting me know about BP!
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Old Jul 15, 2016 | 02:26 PM
  #26  
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Originally Posted by Pgwn-g37
that is nice to know, I thought that was were all the sensors were kept though?
Just finished reading the build and damn, really going to contemplate on going BP. But now which route to build, DIY(friend boosted his G35 and did all his work) to save money, see if there is a shop near me, or send it to Sasha?
Thanks for the information guys and especially Wasted for letting me know about BP!
Message JWick about his build to get some more info. Don't get me wrong, the FI TT kit is great, just very involved.
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Old Jul 15, 2016 | 03:58 PM
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Originally Posted by Pgwn-g37
that is nice to know, I thought that was were all the sensors were kept though?
Just finished reading the build and damn, really going to contemplate on going BP. But now which route to build, DIY(friend boosted his G35 and did all his work) to save money, see if there is a shop near me, or send it to Sasha?
Thanks for the information guys and especially Wasted for letting me know about BP!
Most all vehicles have a series of 3-5 sensors that all play together. Not sure on our car but most domestic and Euro cars have 3 in the bumper somewhere, 1-2 in the passenger foot well and then a specific ball and tube piston type, thing, and unless at least 2-3 of them all close a circuit at the same time, the airbag wont go off. Long story short, if its bad enough to deploy an airbag, it will..
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Old Jul 16, 2016 | 09:32 AM
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Back to the topic of the orignal post though. I am starting to talk with shops around the area and one mentioned that as far as going Super-Charged 450-475whp is starting to be out of the range of the blower?
Do you guys think they are refering to a stock block OR just the blower is engineered to max out there and it doesn't matter what you do. I'm waiting on a reply from them but I was asking about upping displacement, swapping cams, just any thing that could achieve more power from that setup.
I just like the idea of a warranty setup and I would have my ducks in row so when the warranty dropped then my row of ducks would be added. I could still claim that I'm running Stillen but could compete with the low-ave boost Turbo setup?
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Old Jul 18, 2016 | 01:58 PM
  #29  
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Originally Posted by Pgwn-g37
Back to the topic of the orignal post though. I am starting to talk with shops around the area and one mentioned that as far as going Super-Charged 450-475whp is starting to be out of the range of the blower?
Do you guys think they are refering to a stock block OR just the blower is engineered to max out there and it doesn't matter what you do. I'm waiting on a reply from them but I was asking about upping displacement, swapping cams, just any thing that could achieve more power from that setup.
I just like the idea of a warranty setup and I would have my ducks in row so when the warranty dropped then my row of ducks would be added. I could still claim that I'm running Stillen but could compete with the low-ave boost Turbo setup?
I believe at 450-475 WHP on the stock blower you will be overspinning it. As far as warranty, I am pretty sure Stillen's warranty only covers their base tune (<400 WHP can tune) and it runs extremely rich. I am pretty sure any custom tune will void that warranty. I also believe that the car is mileage limited as far as that warranty (as in you can't install it with a car that has 70k miles and expect a warranty). To be fair to Stillen, take what I just said with a grain of salt until you confirm it with them. I would not look at upping the displacement and going supercharge just to meet your goals unless you just want a supercharger. It would probably more than double your cost if you wanted to build the engine out to increase the displacement. So my question is, do you want to meet a power goal, or do you want to supercharge your car?


EDIT: Even if you made 425 WHP and went up against a 425 WHP turbo, the turbo will still win. The turbo will always make more torque than a supercharged setup at the same horsepower. And it will make it earlier.
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Old Jul 18, 2016 | 04:58 PM
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Originally Posted by Waste86
So my question is, do you want to meet a power goal, or do you want to supercharge your car?
Totally this. Most who try to get 400+ with the stillen end up with a blown motor. If you have any sort of power goal a supercharger setup is not what you want to go with.

Just a random tirade: the thread title is not cohesive with the topic at hand - a supercharged VQ is so far inside the box that it could never be outside the box. Well, not unless it is paired with a couple of turbos but I doubt there would be any room in the bay so maybe it could be put "outside the box" / engine bay?

Last edited by ttv36; Jul 18, 2016 at 05:03 PM.
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